I can't verify that the league achievement stacks but that is basically what I did for quite some time and was able to claim all rewards in the end.
My main account has 19 uncollected achievements, total worth about 2k gems. 20th coming soon. A few of them already stacking. But I'm not collecting it anytime soon, so can't test for you![]()
15-Jul-2014 : TH9 [112 Skull, 113 purple crystal] [26-Dec-2013 : Start CoC]
19-Oct-2014 : TH9 [80 Lego, 170 Skull]
28-Dec-2014 : TH9 (49 Lava, 192 Lego, 9 Skull) 7 days till TH10 complete.
04-Apr-2015 : TH10 (10 Zap, 106 Lava, 134 Lego) GG868M EE741M HH2479k AQ29/BK22
19-Oct-2015 : TH10 (68 Magma, 200 Lava, 7 Lego) GG1033M EE910M HH4087k AQ40/BK39.5
Maybe ask a mod or dev...
They stack, and you will have to click "claim achievement" twice for them. I had tons of gems saved for when I hit TH9 by not claiming achievments, and there were a few of them that stacked up like this.
IGN: Pete, Mid TH10
Alt IGN: Spleenless, New TH10
Mini IGN: Spleenless Jr, Defenseless TH10 except for traps & Teslas
Mini-minis: Spleenless III, IV, & V. Not sure how high they will get.
Proud Leader of Clan Spleenless, and proud member of the Goat Herd.
Thanks guys.. btw Today i've claimed it. Couldn't take that risk to not claiming it.
Well that's a shame, we couldn't use you as a sacrifice to see if its true.![]()
You do realise people can't loot your gems right? Just claim them!